Infrastructure Example

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In this page we try to pull it all together and design an infrastructure for a small seastead using as much off the shelf technology as possible. We will use products from the West Marine catalog.


The basic requirements are:

  • The seastead stays put away from any port.
  • We start with solar/diesel power -- no wind and no wave for now.
  • Sewage is carted back to port for disposal.
  • Everything is as turn key as possible. It just works.
  • Preferably no propane. If propane is required, propane sniffers are a must.
  • Safety. Everything just safely shuts down if there are problems.
  • Rough costs only. No need to shop around yet.

What we want is:

  • A kitchen with a refrigerator, a sink with hot and cold water, a stove and an oven.
  • A bathroom with a toilet, hot/cold water sink, and hot/cold water shower.
  • A living room with enough power to run an audio visual center and a computer with Wi-Fi. No need to specify the A/V or computer equipment.

The required equipment is listed below.

Power Management

The power system will be based of batteries. Both the solar and diesel generator can independently charge the batteries.

  • Batteries (how many? how big?)
  • 120 Watt Solar Panel (WM#:8909350 ~$1000)
  • Sun follower?
  • Diesel Generator (auto start? How big?)
  • Power management electronics
  • AC Inverter

Water/Waste Management

  • Watermaker (w power recovery?)
  • Seawater pump (to get seawater up to seastead)
  • Fresh water tank (what size?)
  • On demand water pump
  • Hot water header (stored or on demand?)
  • Sewage tank (what size)


  • Refrigerator
  • Sink
  • On demand water pump
  • Stove/Oven (electrical/propane?)
  • Microwave
  • Industrial food processor


  • Toilet
  • Sink
  • Shower

Living Room

  • AC Converter
  • WiMAX Subscriber unit (such as this one)

Medical Equipment

  • Automatic External defibrillator
  • Oxygen – D sized cylinder
  • Refrigeration (for storage of medical supplies, ice packs ect)
  • Bio-hazard disposal

Fire/Damage Control

  • On demand seawater pumps
  • Independent fire extinguishers
  • Respirators
  • Emergency lighting/power generator
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